Four panel manga けいおん! / K-On! (by Kakifly) is set to receive an anime adaptation, due to air in the spring, and handled by none other than Kyoto Animation.
Their usual illustrative style permeates the character design noticeably; above you see the original, below is the anime version:
As you might guess, guitars will feature.
A studio with a distinct visual style indeed. See also the earlier imagining of what a KyoAni Little Busters! might look like.
Clearly, they have better things to do than waste their time on minor franchises…